805 FZUS71 KLWX 091347 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 947 AM EDT Thu Jul 9 2026 ANZ536-091415- 947 AM EDT Thu Jul 9 2026 ...A STRONG THUNDERSTORM OVER THE WATERS... The areas affected include... Tidal Potomac from Indian Head to Cobb Island MD... At 947 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located over Dahlgren, moving east at 15 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 3845 7704 3846 7701 3835 7696 3832 7703 3838 7706 3833 7717 3840 7720 $$ BJL